Hi John, I think the answer is an unqualified YES! I'm a lot farther west than you, on the Lizard peninsula, and with just the standard twig, when the weather permits me to lean out of the window, I pick up 5 - 25 at a time. What is your location like, if you're at the bottom of a valley or surrounded by tall buildings/trees etc., you will be rather limited on direct reception (1090Mhz is line of sight - and doesn't pass through windows and walls so well). I'm expecting to have much increased range when I get a Radar Extender and Elad 12-1090 erected outside, but time will tell.
Go for it, you won't regret it.